Wind turbine generator

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

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F03D 11/00 (2006.01) F03D 1/06 (2006.01)

Patent

CA 2667027

Provided is a wind power apparatus, which is enabled to suppress the reduction of an operation rate to the minimum by shortening the time period required for a frozen anemometer to restore even under the snowing cold circumstance of a cold area. The wind power apparatus comprises an anemometer (7) in the upper portion of a nacelle, in which a driving/generating mechanism connected to a rotor head carrying windmill vanes is housed. In the nacelle upper portion, there is formed an exit port for an in-nacelle cooling wind, which is opened toward the anemometer (7) and which is equipped with a ventilating flap (13) acting as blow direction varying means for the cooling wind.

L'invention concerne une éolienne qui est capable de supprimer la réduction de vitesse de fonctionnement au minimum en raccourcissant la durée requise pour restaurer un anémomètre givré même lorsqu'il neige et qu'il fait froid dans une zone froide. Cette éolienne comprend un anémomètre (7) dans la partie supérieure d'une nacelle, dans laquelle un mécanisme d'alimentation/génération connecté à une tête de rotor portant des pales d'éolienne est logée. Dans la partie supérieure de la nacelle, il existe un orifice de sortie pour un vent de refroidissement dans la nacelle qui est ouverte en direction de l'anémomètre (7) et qui est équipé d'un volet de ventilation (13) agissant comme moyen de variation de direction du souffle pour ce vent de refroidissement.

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